使用mongoose访问mongodb
=========================================


docker运行mongodb
-----------------------

在项目目录中创建docker-compose.yaml文件，内容如下：

.. code-block:: yaml

    version: '3.1'

    services:

    mongo:
        image: mongo
        restart: always
        ports:
        - 27017:27017
        environment:
        MONGO_INITDB_ROOT_USERNAME: root
        MONGO_INITDB_ROOT_PASSWORD: example

    mongo-express:
        image: mongo-express
        restart: always
        ports:
        - 8081:8081
        environment:
        ME_CONFIG_MONGODB_ADMINUSERNAME: root
        ME_CONFIG_MONGODB_ADMINPASSWORD: example
        ME_CONFIG_MONGODB_URL: mongodb://root:example@mongo:27017/

.. attention:: 
    
    端口别和宿主机上的端口冲突了。

启动

.. code-block:: bash

    docker compose up


连接mongo，并创建账号
---------------------------

.. code-block:: bash

    mongo -u root -p example

.. code-block:: bash

    >use ktv

.. code-block:: bash

    >db.createUser({
        user: "ktv",
        pwd: "123456",
        roles: [
            { role: "readWrite", db: "ktv-select_music_system" }
        ]
    })

mongoose连接
------------------------

.. code-block:: javascript

    mongoose.connect('mongodb://ktv:123456@localhost:27017/ktv-select_music_system')